.head{
    background-color:rgba(0,0,0,.88);

    border-bottom: 1px solid #aec7ec;
    position: static;
}
.banner{

  color:white;
  text-align: center;

  padding-top: 88px;
  box-sizing: border-box;

}
.banner h2{
    font-size: 34px;
}
.banner  p{
    line-height: 30px;
    margin-top: 5px;
}

#mydiv{
    height:360px;
    background-color:rgba(0,0,0,.88);

}
canvas{
    height:360px;
    width:100%;
    position: absolute !important;
}


/* 内容部分 */
.case{
    padding-top: 34px;
    box-sizing: border-box;
}
.case h3{
        font-size: 16px;
        line-height: 26px;
        color: #000;
        padding-bottom: 10px;
}
.case h3::after{
    content:'';
    display:block;
    width:14px;
    height:2px;
    background-color: #1271ef;
}
.case span{
        font-size: 12px;
        color: #999;
    
}
.case-ul li{
    width:360px;
    height:340px;
    border: 1px solid #ccc;
    padding: 15px;
    box-sizing: border-box;
    margin-right: 60px;
    float: left;
}
.case-ul li:last-child{
    margin-right: 0;

}
.case-ul li img{
    width:100%;
}
.case-ul li h4{
    font-size: 16px;
    line-height: 40px;
    color: #181818;
}
.case-ul li p{
    font-size: 12px;
    line-height: 16px;
    color: #666;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    overflow: hidden;

}
.case-ul li a{
    color: #1271ef;
    font-size: 12px;

}
.parter li{
    width:354px;
    height:123px;
    margin-right: 20px;
    background-color: #fff;
    margin-bottom: 20px;
    border: 1px solid rgb(218, 214, 214);
    text-align: center;
    padding-top: 50px;
    box-sizing: border-box;
}

.parter li:nth-child(3n){
    margin-right: 0px;

}

/* 楼层 */

.floor{
    width:80px;
    height:200px;
    position: absolute;
    left:50%;
    margin-left: 640px;
    top:600px;
}
.floor p{
    font-size: 16px;
    line-height: 30px;
    cursor: pointer;
}

.floor .active{
    position: relative;
}

.floor .active::before{
    content: '';
    display: block;
    background-color: #1271ef;
    width:10px;
    height:2px;
    position: absolute;
    left:-17px;
    top:14px;
}
.floorposition{
    position:fixed;
    top:20px;
}
